Current fellows

2017-2019

2016-2018

Emeritus fellows

2015-2017

2014-2016

Current Fellows

Feng Chen

My research focuses on the emergence of magnetic field from the interior of the Sun to its
surface and further to the solar corona. I study how the magnetic field gives rise to the
brillant dynamic structures of the corona observed in extreme ultraviolet wavelengths. I
use super computers to carry out magnetohydrodynamic simulations that produce images
looking like the real Sun.

Alicia Aarnio

I study the Sun and young solar analogs to understand the evolution of activity on solar-like stars.
I also study pre-main sequence, intermediate-mass Herbig Ae/Be stars, combining spectroscopy and
interferometry to understand how they interact with their circumstellar disks. In my work, I use optical,
infrared, and X-ray spectroscopic and photometric observations and run radiative transfer and convective
dynamo simulations. I'm currently co-chair of the AAS Working Group on Accessibility and Disability
(WGAD), co-chair of the AAS Site Visit Oversight Committee (SVOC), and a
member of the Chandra User's Committee (CUC).

Emeritus Fellows

Fang Fang

Currently a Research Assistant Professor in the department of Physics and Astronomy at West Virginia University, Fang's work focuses on numerical modeling in solar physics, including the global interior dynamo, magnetic flux emergence, and coronal eruptive events.

Jean-Franois Cossette

I obtained a PhD in solar physics in 2014 from University of Montreal, in Montreal, Canada. My work has
concentrated on numerical methods for fluid dynamics, especially finite-volume
methods for global magnetohydrodynamical (MHD) simulations of the solar convection zone using implicit
schemes for numerical dissipation. These simulations are known for their use of a Newtonian cooling term
to drive solar convection, as opposed to large-amplitude cooling and heating applied at the base and top of the domain.
This approach reduces the solution's dependence on numerical dissipation, which is important for generating
large-scale cyclic solar-like magnetic fields. My other research interests include the origin of solar supergranulation
and the investigation of the solar p-modes' acoustic sources using realistic MHD simulations of solar surface convection.
I am currently a postdoctoral researcher at University of Montreal, where I work on a neural network algorithm
used to reconstruct the horizontal flow component at the Sun's surface using the surface intensity obtained from
both surface convection simulations and observations. Featured work:
Cossette et al. 2017 "Magnetically Modulated Heat Transport in a Global Simulation of Solar Magneto-convection" ApJ, 841, 65
Cossette, J.-F. & Rast, M. P. 2016 "Supergranulation as the Largest Buoyantly Driven Convective Scale of the Sun" ApJL, 829, 17
Beaudoin, P. et al. (incl. Cossette) 2016 "Double Dynamo Signatures in a Global MHD Simulation and Mean-field Dynamos" ApJ, 826, 138

Commitment to equity and inclusion

The Hale fellowship program recognizes scientific and educational missions are strengthened
by contributions from diverse perspectives. We aim to promote a fair, inclusive, and supportive
environment for all. We adhere to the AAS Code of Ethics and
encourage all involved faculty, students, and staff to do the same.